Fix test execution on Python 3.12

Python 3.12 deprecates setup.py and distutils. Update setup_tests.sh and
run_tests.sh to make them work again in 3.12.

We manually patch the Anki source code to not depend on distutils. This
fix was applied upstream but we test against an old Anki version so we
don't have to build Rust stuff. We should stop kicking that can down the
road at some point.

Note that tests currently fail both locally and in CI with the error
"AttributeError: 'TestWithCollection' object has no attribute 'col'".
I think this error is unrelated to this commit and I will fix it in a
subsequent commit.

run_tests.sh

@@ -5,4 +5,4 @@ set -e
 # enter venv if needed
 [[ -z "$VIRTUAL_ENV" ]] && source tests_venv/bin/activate
 
-exec python setup.py pytest --addopts tests
+exec python -m pytest tests/

setup_tests.sh

@@ -4,20 +4,24 @@ set -e
 anki_test_revision=ed8340a4e3a2006d6285d7adf9b136c735ba2085
 
 # install pyaudio system deps
-sudo apt-get -y update && sudo apt-get install -y python-all-dev portaudio19-dev \
-|| sudo pacman -S --noconfirm portaudio python-virtualenv
+sudo apt-get -y update && sudo apt-get install -y python-all-dev portaudio19-dev ripgrep moreutils \
+|| sudo pacman -S --noconfirm --needed portaudio python-virtualenv ripgrep moreutils
 
 # enter venv if needed
 if [[ -z "$VIRTUAL_ENV" ]]; then
   rm -rf tests_venv
   virtualenv -p python3 tests_venv
   source tests_venv/bin/activate
 fi
+pip --isolated install .
+pip --isolated install 'pytest>=6.0.2'
 
 # clone Anki upstream at specific revision, install dependencies
 rm -rf anki_upstream
 git clone https://github.com/ankitects/anki.git anki_upstream
 ( cd anki_upstream
   git reset --hard $anki_test_revision
-  pip install -r requirements.txt
+  pip --isolated install -r requirements.txt
+  # patch in commit d261d1e
+  rg --replace 'from shutil import which as find_executable' --passthru --no-line-number --multiline 'from distutils\.spawn import[^)]*\)' anki/mpv.py | sponge anki/mpv.py
 )